Hi Derek, I respectfully disagree with the strip / barrier coat comments.. I would find the best "bottom guy" on the lake / in the Toronto area and have him look at it. He might tell you something like: "It's very common for those boats in fresh to water to develop hairline cracks / no big deal" (BTW fresh water is much worse for osmosis issues). It could also be a "Fix it now / or pay much more later" Point is: You have it looked at by a guy who's been doing bottoms on the lake for 30 years.. I'll pretty much know what's what.
Stripping to the gelcoat might be a huge job.. It was on mine, we found 20 + coats of bottom paint before we got to the gelcoat. I was so glad I did not attempt that job.. With the rest of my work / family schedule the boat wold have been in the yard till August.. What if you don't have to do it right away and would rather spend the time / money elsewhere? About the barrier coat.. I was strongly advised against it on my lake. My guy knew as it had done it several times over the last 30 years and had to deal with the too often un-happy results.. If your bottom is not really dry then it traps the moisture in and can / does promote blisters... I'm not trying to tell you barrier coats are bad. I'm just saying it depends. On a brand new boat: good idea. On a 25-30+ year old boat: not necessarily. The 30 years experience guy on your lake, he'll know (Local water / conditions knowledge is key). Best of luck. -Francois Rivard 1990 34+ 'Take Five" Lake Lanier, Ga Derek If you are worried I would strip bottom to gelcoat. Then assess the problem. You will at the very least wish to apply a barrier coat such as Interprotect after stripping Mike Regards -----Original Message----- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Derek McLeod via CnC-List Sent: Wednesday, April 29, 2015 10:11 AM To: cnc-list@cnc-list.com Subject: Stus-List Hairline cracks in hull surface My new to me 1983 29-2 has some fine hairline cracks in various areas on the hull. I don't know if they extend through the bottom paint or are more superficial, but they can be felt when you run your hand over them. It is painted with VC17 and I plan to recoat with that. I'm wondering how to best deal with the cracks? Does epoxy filler stick to VC17? I have West System products for other repairs. Sand down to the bottom of the cracks? I guess I then need to do 5 coats of Interprotect before the VC17? Derek McLeod C&C 29-2 Toronto Derek McLeod Design C (416) 707-0291 www.derekmcleod.com François Rivard 4111 Northside Pkwy, Nw Big Data Black Belt Atlanta, 30327-3015 IBM Sales & Distribution, Software Sales Usa Mobile: 770-639-0429 e-mail: jfriv...@us.ibm.com
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